JE Pistons Subaru EJ257 Left Single Piston - 99.75mm Bore - 1.130in. CH -21.10 CC

If you're rebuilding the engine in your Subaru EJ257, this JE Pistons Left Single Piston is a solid choice for performance applications. JE Pistons has been making forged pistons for a long time, and they build these specifically for each engine to get the best durability and performance. This piston is made from 2618 aluminum, which gives it the strong tensile strength needed when you're pushing your engine hard.

This particular piston is designed with a 99.75mm bore and features JE's proprietary Forged Side Relief (FSR) design. This helps minimize friction and power loss by using a narrower skirt and a shorter wrist pin, which also saves weight. Some applications also include a skirt coating to further reduce friction and wear, while an accumulator groove can help manage combustion gas pressure for better ring seal and consistent power. These pistons are made 100% in the USA and come with high-quality wrist pins, locks, and JE Pro Seal premium piston rings.

Keep in mind that this piston is not CARB approved and cannot be shipped to California. It's important to refer to the manufacturer's installation instructions for proper fitment and assembly details.